Size-controllable synthesis of catalyst of gold nanoparticles supported on TiO2 by using sonoelectrochemical methods

Tsui Yun Lo, Chung Chin Yu, Yu Chuan Liu, Kuang Hsuan Yang, Qing Ye Chen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work, size-controllable Au NPs-coated TiO2 are synthesized by adjusting the pH of solutions based on sonoelectrochemical methods. The size-controlled Au NPs on TiO2, ranging from 2 to 80 nm in diameter, can be obtained by varying the pH of solutions from 3 to 7 and further placement for 3 h before sonoelectrochemical reductions. Experimental results indicate that the catalytic activity of synthesized Au NPs for the decomposition of acetaldehyde in solution increases with a decrease of particle size. However, bigger Au NPs with 80 nm in diameter still demonstrate slight activity for the decomposition of acetaldehyde due to the formation of Au/TiO2 nanocomposites.

Original languageEnglish
Pages (from-to)920-922
Number of pages3
JournalMaterials Research Bulletin
Volume48
Issue number2
DOIs
Publication statusPublished - Feb 2013

Keywords

  • A. Inorganic compounds
  • B. Chemical synthesis
  • D. Catalytic properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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